David Wees
davidwees.bsky.social
David Wees
@davidwees.bsky.social
Father. Canadian. Math Curriculum Designer, Educational Consultant. Love science. Geek, Feminist, Humanist, Antiracist, Bisexual 🏳️‍🌈 He/Him

I have profiles everywhere: @davidwees.
Blog: https://davidwees.com/
My favorite argument for the inclusive definition is that the area of a trapezoid formula reduces to the other area formulas under the same conditions that the other quadrilaterals do as subsets of trapezoids.
October 14, 2025 at 4:52 AM
Reposted by David Wees
Did something fun early enough on the internet and got to have his opinions taken seriously forever.
October 12, 2025 at 11:24 PM
For the remainder problem, I'm well aware of modulo notation, which would be really useful here, but my students are not, and it couldn't figure out how to connect it neatly to a meaningful context for the students. #btc #mathed #mathsky
September 19, 2025 at 2:06 AM
Here are two tasks I used back to back that worked really well, for my goals for those two days. #btc #mathed #mathsky
September 19, 2025 at 2:05 AM
Yeah, that definitely seems like a reasonable interpretation to me. I might re-use some of these representations when it comes time to work on the distributive rule.
September 3, 2025 at 11:40 PM
My plan is to introduce the ways in which I want students to collaborate slowly, over time, rather than all at once.
September 3, 2025 at 4:21 AM
The activity went very well! Every single student was able to engage with the task and make significant headway without too much work from me. We needed a break from the heavy collaboration we'd been doing over the past while.
September 3, 2025 at 4:21 AM
Here's a blog post talking about the advantages of using the approach I created for completing the square. I'm hopeful this approach will also work for this similar mathematics.

mathcoachblog.com/2017/06/05/a...

#mathed #mathsky
Area Models and Completing the Square
I’m nearing the end of my time with my 9th graders, with this week dedicated to moving beyond factoring as the sole method for solving quadratic equations and towards more general methods lik…
mathcoachblog.com
September 1, 2025 at 8:35 AM
They'd like someone who has merged academia and industry and can give life and career advice. The event is in English because it will bring young leaders together from around the country.

Is anyone interested in helping out?
August 17, 2025 at 12:07 AM
This is so funny.
August 6, 2025 at 10:16 PM
I've created a new streamlined page for my educational consulting services on my website to help schools and educators who are looking for support answering these questions. Check it out here: davidwees.com/services/

Let me know how we can work together!

#mathed #edtech #mathematics
Services – The Reflective Educator
davidwees.com
August 4, 2025 at 6:35 AM
Ooo, thanks for the reminder. I might have forgotten about these.
July 26, 2025 at 9:54 PM